6442011266344 has 8 divisors (see below), whose sum is σ = 12078771124410. Its totient is φ = 3221005633168.

The previous prime is 6442011266323. The next prime is 6442011266387. The reversal of 6442011266344 is 4436621102446.

It can be written as a sum of positive squares in only one way, i.e., 4120745721444 + 2321265544900 = 2029962^2 + 1523570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 6442011266344.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402625704139 + ... + 402625704154.

Almost surely, 2^{6442011266344} is an apocalyptic number.

It is an amenable number.

6442011266344 is a deficient number, since it is larger than the sum of its proper divisors (5636759858066).

6442011266344 is a wasteful number, since it uses less digits than its factorization.

6442011266344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805251408299 (or 805251408295 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 6442011266344 in words is "six trillion, four hundred forty-two billion, eleven million, two hundred sixty-six thousand, three hundred forty-four".